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Pavlova-9 [17]
3 years ago
13

How does the composition of magma determine eruptions characteristics

Biology
1 answer:
DaniilM [7]3 years ago
6 0
Thinker magma = more explosive. Thinner = less explosive. 
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Sodium ions, oxygen (O2), and glucose pass directly through lipid bilayers at dramatically different rates. Which of the followi
Elodia [21]

Answer:

The correct order, from fastest to slowest, for the passage of molecules and ions through the cell membrane is oxygen, sodium ions, glucose (option D).

Explanation:

The plasma membrane is a lipid bilayer, with glycoproteins and membrane proteins, which constitutes a semi-permeable barrier to the passage of substances into and out of the cell.

The speed with which a substance can pass through the membrane depends on its chemical properties -hydrophilic substances pass through with greater difficulty than lipophilic ones- requiring in some cases specialized transport mechanisms. The different rates with which a substance passes depends on this.

  • <em>Oxygen (O₂) </em><em>passes through simple diffusion, depending on a concentration gradient. It's the molecule that passes through the membrane the fastest. </em>
  • <em>In second place, there would be the </em><em>Na⁺ ions</em><em> -charged atoms- that cross the membrane by facilitated diffusion, through specific ionic channels. </em>
  • <em>The </em><em>glucose</em><em> molecule, being larger, requires the use of transport proteins, being its passage through the membrane slower with respect to oxygen or sodium.</em>

Undoubtedly, molecular weight and affinity for the plasma membrane are determining factors for the passage of molecules through the lipid bilayer.

Learn more:

Simple diffusion and active transport  brainly.com/question/6420224

4 0
3 years ago
How have scientist started to study relationships between different groups of organisms?
Delicious77 [7]
<h2>Answer:</h2>

The scientist started to study relationships among various groups of organisms <u>C. by using genetic analyses</u>.

<h2>Explanation:</h2>

The following features were used to study about the relationships between different groups of organism:

  • External morphology
  • Similarities in structure
  • Genetic analysis
  • Chemical composition

The molecular similarities in the structure of RNA, DNA, and proteins help to establish the relationship of relationships between different groups of organisms. This was studied through testing the samples obtained by organisms using genetic analyses.

7 0
2 years ago
How dose a dietician help a patient ?
Shkiper50 [21]
4) A dietician helps the patient get the amount of nutrients they need, they can also assist in healthy weight loss for a patient who’s prepping for surgical procedure
3 0
3 years ago
consider the differences in solids, liquids and gasses, and their surface area. which state of matter do you think would usually
eimsori [14]

Answer:

el que tendrá mayor velocidad de reacción son los líquidos

Explanation:

6 0
2 years ago
3.Why should a model of the carbon cycle include the burning of fossil fuels?(1 point)
user100 [1]

Answer:

Burning fossil fuels moves carbon from the geosphere to the atmosphere.

Explanation:

  • Fossil fuels such as coal, petroleum and natural gas are produced and stored in the geosphere. i.e. the part of the Earth that includes the Earth's interior, landforms, rocks and minerals.
  • Fossil fuels, extracted from the geosphere are burned to generate energy.
  • Combustion of fossil fuels releases the stored carbon into the atmosphere in the form of carbon dioxide.
5 0
3 years ago
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